Rotary cylinder structure



c. E. WAREAM ROTARY GYLINDER- STRUCTURE April --23, 1935.

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A ril 23, 1935. c. E. WAREAM ROTARY CYLINDER STRUCTURE 3Sheets-Shee't 2" Filed Oct. 20, 1932" INVENTOR A ril 23, 1935.

v C. E. NAREAM ROTARY CYLINDER STRUCTURE Filed Oct 20, 1932 5 Sheets-Sheet 3 I INVENTOR [.1 Ala/F54 w W K Patented Apr. 23, 1935 PATENT OFFICE 1,998,56fi ROTARY CYLINDER STRUCTURE Charles E. Waream, Norwood, Ohio, assignor to The American Laundry Machinery Company, Cincinnati, Ohio, a corporation of Ohio Application October 20,

6 Claims.

My invention relates to a washing machine cylinder and particularly to a washing machine cylinder embodying a construction and arrangement of parts such that the cylinder may be readily fabricated with spot welding as the means for securing the various parts together. In accordance with my inventiomthis is accomplished by havingthe stations at which the parts of the cylinder are to be spot welded together in accessible positions to the welding electrodes'so that a more efiicient and speedier fabrication of the cylinder can be obtained and with the result of a more durable union of the various parts and a sturdier construction in the finished cylinder.

Further, the cylinder is so constructed as to minimize danger of twisting the, cylinder out of line by the stresses and strains set up in rotatably driving the cylinder, it being of the type that is driven from its ends, and the oylinderis constructed to have no seamslon the goods contacting surfaces of the cylinder body sheets to thereby produce less wear on the goods and reduce the possibilities of the goods being caught and. damaged during the washing process.

One embodiment of my invention may be seen in the accompanying drawings wherein similar characters of reference designate corresponding parts, and wherein:

Fig. 1 is a; front elevation, with parts'broken away and parts in section, showing a cylinder constructed in accordance with my invention; Fig. 2 is a sectional view taken on the line 2--2 of Fig. 1; Fig. 3 is a fragmentary sectional view asin the plane of line 3-3, Fig. 2 showing the attachment of the remaining lifting ribs to the cylinder and a cylinder partition plate; Fig. 4 is a sectional view showing the door slide construction; Fig. 5 is a fragmentary sectionalview showing a cylinder sheet, head sheets, partition plate and transmitters in assembled position; Fig; 6 is a fragmentary sectional view as in'the plane of line 6 -6, Fig. 2, showing the construction and attachment of a rib under the door slides; Fig. '7 is a perspective view showing the transmitters, head sheets, and lifting ribs assembled together; Fig, 8 is a sectional view as in the plane" of line 8'-8, Fig. 6, showing the rib reinforcing cap and top door lock strip welded in place; Fig. 9 is a fragmentary section as in the plane of line 9-9, Fig. 3, showing the reinforcing cap welded to the partition plate; and Fig. 10 is a view showing the cylinder rib riveted in the transmitters.

In the drawings, I have shown one embodiment of my invention as consisting (see Fig. l) of annular head sheets or end plates I that are U-- 1932, Serial No. 638,767

shaped in cross section to receive a transmitter 2 having a recessed portion 3 for a driving or supporting'gudgeon (not shown). The head sheets land transmitters 2 are grooved at spaced points about their periphery as shown in Figs. 2 and 6 5 to receive lifting ribs 4 that are attached thereto as by rivets 5, the transmitters being, in this instance, of too great a thickness for proper spot welding. These end plates and lifting ribs when assembled together by riveting and spot welding 10 as will be hereinafter described, form the frame or skeleton of the cylinder structure.

As shown in Fig. 2, the outer wall of. the cylinder is made up of individual sheets 6, I, 8 and 9, there being an open space in the cylinder wall 15 covered by a door [0 that is slidable from closed to open position or vice versa, in door guides II and I2 that are spot welded to the cylinder sheets.

A locking means l3 of any suitable type may be provided for locking the door In in closed position. 20

Stirrup members l4 are provided for reinforcing the connection between the lifting ribs 4 and the head sheets and transmitters l and 2, these stirrup members embodying two faces l4 and i5 spot welded to the lifting ribsand to head sheet I 25 respectively. Adjacent the lower edge of the door opening, a relatively small reinforcing rib I6 is provided that is reinforcedat its point of connection with the head sheets andtransmitters, similarly to the lifting ribs 4 by means of stir- 30 rups l1.

As shown in Fig. 2, the three lower ribs 4 have their free ends 18 extending beyondthe periphery of the head sheets, and adjacent edges of the 7 cylinder sheets land 8 and one edge of the sheets 35 6 and 9 end in substantially right angle bends so that these edges, when assembled on the frame, lie flat against and are parallel to the sides of the ribs. Thus, these edges of the sheets may be spot welded to the ribs on'the outside of the cylinder 40 I and leave no seams on the inner surface thereof intermediate adjacent ribs. Rib fill sheets l9 having their opposite edges formed with substantially' right angle bends, are provided between the free ends l8 of the ribs as shown. 1 45 The uppermost rib 4 and the reinforcing rib I6 as shown in Fig. 2 do not have their free ends extending outside of the periphery of the head sheets to thereby permit the door guides I I and I2 to be assembled on the cylinder sheets and the 50 door 10 to be'moved from closed to open position without striking .the free .ends of the'ribs. The free ends of these ribs end in substantially right angle bends that lie'inside of and parallel with one edge of the sheets 6 and 9.

In the cylinder door and slide construction shown in Fig. 4, a door It! is provided with a pair of guide strips 20, one located on each side of the door immediately inside of the slides I l and I2 and serving to keep the door in alignment while it is being opened and closed. The center slide I2 is of a nature to accommodate a door on either side, the outer slide ll being constructed to accommodate the outer edge of a door or edges of a pair of doors and includes a base member and a removable plate 2! which will permit removal of the door for replacement or repair. As shown in Fig. 2, a lower abutment 22 and an upper lock and stop stirrup are provided on the upper and lower sides of the cylinder opening. These members, in addition to acting as stops, are also constructed to restrain the upper and lower edges or" the door from bulging or otherwise being distorted due to the work being processed pounding against the door it while the cylinder is rotated.

As shown in Fig.5, it may be desirable to provide one or a number of partition plates 25- within the cylinder to divide the cylinder into compartment s. These partition plates, in this instance, are grooved similarly'to the head are similar in cross section, whereby they may be con veniently spot welded to the cylinder sheets and the ribs, stirrup members being provided for reinforcing the connection between the ribs and the partition plate if desired. a

It will be understood that the flanged annular head sheets are provided with cut-away portions to receive the lifting ribs 4 whose free ends extend outwardly past the circumference of the head sheets and "transversely outwardly through the head sheets, the edges of the cut-away portions of the head sheet flange abutting the ribs as shown in Fig. 7. Likewise, the transmitters 2 are cut away so that the lifting ribs may extend transversely outwardly therethrough and be riveted thereto as by rivets 5 and to permit the free ends of the ribs to extend past the circumference thereof. However, for the lifting. rib t at the top of the cylinder and the small reinforcing rib it, the flanges of the head sheets are still more cut away to allow the free ends of the ribs to be bent to lie flat on the circumference of the transmitter as shown in Figs. '7 and 10.

In assembling this cylinder structure, the first step is to weld the lifting rib stirrups M and the reinforcing rib stirrup i? to the cylinder head sheets land, if a partition or partitions are desired, rib stirrups are welded to each side of the partition plate or plates 24.. Then,the lifting and reinforcing. ribs are assembled with the head sheets and the partition plates, if any, and welds made between theribs and the inwardly projecting flanges of the rib stirrups. Thus, what may be termed the chassis of the cylinder structure is fabricated, all welds between the parts both hereinbefore and hereinafter mentioned being indicated by the X marks. p

The chassis may then be disposed in a suitable work holding fixture if desired and the cylinder sheets 6, I, 8 and 9 welded thereto. Beginning with the cylinder sheet 9, the lower door abutment 22 is placed thereon and this abutment member, the cylinder sheet and the front outwardly projecting flange 26 of the small reinforcing rib IG are welded together in the positions shown in Fig. 2, the rearward flange of the rib 6 having been welded to the cylinder sheet 9. In this position, the right angle bend 28. of one edge of the cylinder sheet 9 will abut against one free end of the next adjacent rib '4 as shown and,

the fill piece I9 being disposed between the free ends of the rib, the bent edge 28 of the cylinder sheet 9, one free end of the rib 4, and the adjacent bend of the fill piece is are welded together.

Next, the cylinder sheet 8 is placed in position between adjacent ribs 4 as shown and the proper welds made from. the outside through the bent ends of the fill pieces IS, the free ends of the ribs 4, and the bent edges 29' of the cylinder sheet 8. Similarly, the cylinder sheet I is next assembled with the bent ends 30 thereof, one free end of each of a pair of adjacent ribs 4, and the bent ends of the fill pieces l9 being welded together.

. Following in'ordenthe cylinder body sheet 6 is placed in a position with the bent end 3!, there being only one bent end on this sheet, thereafter welded to the one free end of the rib 4 against which it abuts and the right angle bend of the fill piece it. Then, the right angle bend 32 of one free end of the upper rib 4 having been welded to the cylinder sheet 6, the upper door stop member 23 is placed in position and a weld made through the door stop, the cylinder sheet 6 and the right angle bend 33 of the other free end of the rib 4. course, if a partition plate 24'- is disposed in the cylindenthe cylinder sheets are welded to the flange of the partition plate and possibly to the ribs as the sheets are assembled on the chassis similarly to the manner in which the cylinder sheets are welded to the ribs as hereinbefore described. After a'il of the sheets and door stops are welded in proper position, the door slides l0 and i l, see Fig. 7, are properly welded in position and the cylinder doors which have been completely assembled and welded apart from the chassis are disposed in the door slides.

The final Welding operation consists of welding the cylinder sheets to the outwardly projecting flange portions of the cylinder head sheets I. This preferably takes place while the chassis is disposed in a suitable work holding fixture, adapter plates being provided having a plurality of notches that allow access of the welding electrode points to the proper places about the head description, I have provided acylinder structure wherein the parts are so designed and arranged that the cylinder readily lends itself to fabrication by spot welding as a means for connecting the parts together, the cylinder parts being so constructed and'arranged as to provide a rigid structure which will resist disalignment of parts due to twisting stress resulting from driving the cylinder at its end or ends. Further, I have pro"- vided'a cylinder structure that is relatively simple and, as an additional advantage, has no seams on its inner surface which might'possibly catch and tear goodsbeing treated therein or subject the goods to undue wear.

What I claim is: r

1. End construction for a cylinder of the class described, comprising a generally circular head sheet having circumferentially-spaced liftingrib-receivingrecesses, and th'erebetween outwardly turned circumferential segmental flanges, a channel shaped lifting rib seating in one of said recesses and having an end disposed coextensive with the adjacent head sheet flanges with its outer edge parts extending radially beyond said head sheet, a stirrup arranged on the inner side of said head sheet and extending along the line of joinder of said lifting rib and head, sheet parts and being welded to each, and cylinderwall sheets on opposite sides of said lifting rib each having its end edge overlying the corresponding head sheet flange and welded thereto, and each having a radially and outwardly extending flange in abutting relation with the adjacent edge part of said lifting rib and welded thereto.

2. End construction for a cylinder of the class described, comprising a generally circular head sheet having circumferentially-spaced liftingrib-receiving recesses, and therebetween outwardly turned circumferential segmental flanges, a channel-shaped lifting rib seating in one of said recesses and having an end disposed coextensive with the adjacent head sheet flanges with its outer edge parts extending radially beyond said head sheet, a stirrup arranged on the inner side of said head sheet and extending along the line of joinder of said lifting rib and head sheet parts and being welded to each, cylinder-wall sheets on opposite sides of said lifting rib each having its end edge overlying the corresponding head sheet flange and welded thereto, and each having a radially and outwardly extending flange in abutting relation with the adjacent edge part of said lifting rib and welded thereto, and a transmitter having a face adjacent said head sheet and flanges outwardly turned therefrom, adjacent said head sheet flanges and said coextensive lifting rib ends and secured to said adjacent head sheet and lifting rib parts by riveting.

3. End construction for a cylinder of the class described, comprising a generally-circular transmitter having circumferentially-spaced liftingrib-receiving recesses, said transmitter having an outwardly turned flange extending about its periphery and including said recesses, a head sheet inside said transmitter having flanges overlying circumferential parts of said transmitter flange and cut away in registry with said transmitter recesses, channel-shaped lifting ribs having end parts seating in said recesses, and a cylinder-wall sheet having an end part overlying and secured to a flange part of said head sheet between said lifting ribs.

4. End construction for a cylinder of the class described, comprising a generally-circular transmitter having circumferentially-spaced liftingrib-receiving recesses, said transmitter having an outwardly turned flange extending about its periphery and including said recesses, a head sheet inside said transmitter having flanges overlying circumferential parts of said transmitter flange and cut away in registry with said transmitter recesses, channel-shaped lifting ribs having end parts seating in said recesses, a cylinder-wall sheet having an end part overlying the flange of said head sheet, between said lifting ribs, and fill pieces along the longitudinal openings of said lifting ribs and having flanges in abutting relation with the corresponding longitudinally extending edge parts of said cylinder-wall sheets, adjacent longitudinal edge parts of the wall sheets and flll pieces, with thelifting rib edge parts therebetween, being welded together.

5. End construction for a cylinder of the class described comprising a generally circular head sheet having circumferentially-spaced liftingrib-receiving recesses, and therebetween outwardly turned circumferential segmental flanges, a channel-shaped lifting rib seating in one of said recesses and having its end disposed coextensive with the adjacent head sheet flanges with longitudinal edge parts bent to lie in the cylindrical surface defined by said circumferential flanges, said lifting rib edge parts being longitudinally coextensive with said circumferential flanges and the latter being cut away to clear the former, a stirrup arranged on the inner side of said head sheet and extending along the line of joinder between the trough part of said lifting rib and the face part of said head sheet and being'welded to each, and a cylinder-wall sheet overlying said adjacent lifting rib and head sheet flanges and welded to each.

6. End construction for a cylinder of the class described comprising a generally circular head sheet having circumferentially spaced liftingrib-rece'iving recesses, and therebetween outwardly turned circumferential segmental flanges, a channel-shaped lifting rib seating in one of said recesses and having its end disposed coextensive with the adjacent head sheet flanges with longitudinal edge parts bent to lie inthe cylindrical surface defined by said circumferential flanges, said lifting rib edge parts being longitudinally coextensive with said circumferential flanges and thelatter being cut away to clear the former, a stirrup arranged on the inner side of said head sheet and extending along the line of joinder between the trough part of said lifting rib and the face part of said head sheet and being welded to each, a cylinder-wall sheet overlying said adjacent lifting rib and head sheet flanges and V welded to each, and a transmitter having a face adjacent said head sheet and flanges outwardly turned therefrom, adjacent said head sheet flanges and said coextensive lifting rib ends and secured to said adjacent parts by riveting.

CHARLES E. WAREAM. 

